Die grinder



FIG. 1 is a top, right front perspective view of a die grinder of thepresent invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing is for illustrative purposes only and forms nopart of the claimed design.

The ornamental design for a die grinder, as shown and described.